User’s Manual
20
After replacing the rubber buffer and fixing the top cover, manually lift and lower the arm
several times to make sure that the mechanical movement is flexible and smooth, then you
can power on and operate the Barrier.
4.2.2.2 Maintaining Drive Unit
Check whether the fastening bolts of the drive unit are loose, and whether the bearing
works normally when the Barrier opens or closes.
Check whether the transmission part is loose and therefore affecting the running of the
Barrier.
Check whether there is any abnormal noise during the operation of the motor. If so, contact
after-sales service.
4.2.2.3 Maintaining Angle Sensor
The angle sensor is connected to the main shaft to detect the running position and speed of the
barrier arm real time. Check the angle sensor when the Barrier jitters obviously.
How to check angle sensor:
Cut off power supply to the Barrier, and remove the three leads of the angle sensor
Step 1
(labeled 4, 5, 6).
U
se a multimeter (20KΩ resistance), and connect the red and black test leads to 4, 5
Step 2
respectively.
Manually make the barrier arm move slowly from the opening status to the closed
Step 3
status.
The resistance reading should change between 5KΩ ± 2% and 7.4KΩ ± 2%, and the
reading becomes smaller when the arm is raised and larger when the arm falls. In the
changing process of resistance, there is no jumping phenomenon. If anything is
abnormal, adjust the angle sensor to make the resistance fall within the specified
range.
4.2.2.4 Adjusting Balance Spring
When changing the barrier arm, you need to adjust the balance spring to fit the new barrier arm.
How to adjust balance spring:
When the barrier arm is at an angle of about 5° from the horizontal, release the barrier arm (see
Figure 4-1), and the arm can slowly rise to the vertical position.
